Name
slpprdp
Label
Total Sleep Duration: the interval between sleep onset and sleep offset while the participant is asleep from type II polysomnography
Description

Conventionally this variable would be called total sleep time (TST)(i.e. total time spent in stage 1 or greater).

Units
minutes (min)
Type
numeric
Visit number vs Total Sleep Duration: the interval between sleep onset and sleep offset while the participant is asleep from type II polysomnography
N Mean StdDev Median Min Max Unknown Total
Visit 8 461 346.6 ± 77.0 351.0 76.0 630.0 - 461
Age (categorical) vs Total Sleep Duration: the interval between sleep onset and sleep offset while the participant is asleep from type II polysomnography
Visit 8
N Mean StdDev Median Min Max Unknown Total
Total 455 347.3 ± 76.9 352.0 76.0 630.0 - 455
75-84 years 325 354.3 ± 76.7 361.0 76.0 630.0 - 325
85 years or older 130 329.6 ± 74.8 337.0 128.0 455.0 - 130
Gender vs Total Sleep Duration: the interval between sleep onset and sleep offset while the participant is asleep from type II polysomnography
Visit 8
N Mean StdDev Median Min Max Unknown Total
Total 461 346.6 ± 77.0 351.0 76.0 630.0 - 461
Female 461 346.6 ± 77.0 351.0 76.0 630.0 - 461